petroleum industry equipment, namely, fluids processing (solids control) equipment, namely, shaker screens, shakers, desanders, desilters, hydroclone packages, (namely, several hydroclones connected by piping and mounted on a skid), mud cleaners, (namely, hydroclones used in conjunction with a shaker all of which is mounted on a skid), centrifuges and fluids processing systems, (namely, an integrated, tailor made, system consisting of two or more primary shakers, a desander, a desilter, a hydroclone package, a mud cleaner, a centrifuge, a degasser and associated piping and tanks mounted on a skid) and pressure control equipment, namely, chokes, degassers, centrifugal degassers, H2S mud gas separators, dual mud gas separators for horizontal drilling, and total gas containment systems, (namely, integrated degasser and H2S mud gas separator with associated valves and piping mounted on either a skid or a trailer)